Airworthiness directives › 2021-26-02
AD 2021-26-02 Airworthiness Directives; Gulfstream Aerospace Corporation Airplanes
Models named: GV, GV-SP. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to Gulfstream Aerospace Corporation Model GV and GV-SP airplanes, all serial numbers, certificated in any category. Note 1 to paragraph (c): Model GV-SP airplanes are also referred to by the marketing designations G500, G550, and G500-5000.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Within 12 months after the effective date of this AD, revise the existing ALS of the instructions for continued airworthiness or aircraft inspection program for your airplane by establishing a life limit of 20,000 flight cycles for each MLG trunnion pin part number 1159SCL566-15. Note 2 to paragraph (g): Table 5 in Section 05-10-10 of the following aircraft maintenance manuals contains the life limit in paragraph (g) of this AD: Gulfstream GV Aircraft Maintenance Manual, Revision 53, dated March 15, 2021; Gulfstream G550 Aircraft Maintenance Manual, Revision 34, dated March 15, 2021; or Gulfstream G500-5000 Aircraft Maintenance Manual, Revision 34, dated March 15, 2021.
Unsafe condition
This AD was prompted by the omission of a life limit in the airworthiness limitations section (ALS) for a certain main landing gear (MLG) trunnion pin. The FAA is issuing this AD to prevent a MLG trunnion pin from remaining in service beyond its fatigue life. This unsafe condition, if not addressed, could result in MLG failure and could lead to a runway excursion.
Affected ADs
None.
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1